Question

我试图在终端中构建一个简单的程序。

#include <stdio.h>
#include <stdlib.h>
int main()
{
        printf("TESTING");
        return 1;
}

我跑了g ++ -o test test.cpp

错误：

/usr/include/features.h:323:26: error: bits/predefs.h: No such file or directory
/usr/include/features.h:356:25: error: sys/cdefs.h: No such file or directory
/usr/include/features.h:388:23: error: gnu/stubs.h: No such file or directory
In file included from test.cpp:2:
/usr/include/stdlib.h:42:29: error: bits/waitflags.h: No such file or directory
/usr/include/stdlib.h:43:30: error: bits/waitstatus.h: No such file or directory
/usr/include/stdlib.h:320:49: error: sys/types.h: No such file or directory
In file included from test.cpp:2:
/usr/include/stdlib.h:35: error: ‘__BEGIN_DECLS’ does not name a type
/usr/include/stdlib.h:102: error: expected constructor, destructor, or type conversion  before ‘;’ token
/usr/include/stdlib.h:113: error: ‘__END_NAMESPACE_STD’ does not name a type
/usr/include/stdlib.h:122: error: expected constructor, destructor, or type conversion before ‘;’ token
/usr/include/stdlib.h:140: error: expected constructor, destructor, or type conversion before ‘extern’
/usr/include/stdlib.h:145: error: expected constructor, destructor, or type conversion before ‘extern’
/usr/include/stdlib.h:149: error: expected initializer before ‘__THROW’
/usr/include/stdlib.h:152: error: expected initializer before ‘__THROW’
/usr/include/stdlib.h:153: error: ‘__END_NAMESPACE_STD’ does not name a type
/usr/include/stdlib.h:160: error: ‘__END_NAMESPACE_C99’ does not name a type
/usr/include/stdlib.h:168: error: ‘__END_NAMESPACE_STD’ does not name a type

列表以这种方式继续。我希望有人可以指出我没有做过这项工作。

Answer 1

您的代码适用于同一平台。

错误消息看起来像C错误。也许使用C ++标题会有所帮助。

#include <cstdio>
#include <cstdlib>

int main(int argc, char *argv[]) {
  printf("TESTING");
  return 0;
}

您可能还有一些奇怪的别名。有时人们将gcc设置为g ++的别名错误。

tom@flim:~$ set | grep g++

tom@flim:~$ alias grep
alias grep='grep --color=auto'

tom@flim:~$ alias g++
bash: alias: g++: not found

tom@flim:~$ which g++
/usr/bin/g++

tom@flim:~$ ll `which g++`
lrwxrwxrwx 1 root root 7 2011-08-14 02:17 /usr/bin/g++ -> g++-4.6*

tom@flim:~$ g++ --version
g++ (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

这是我在ubuntu中设置开发环境的方式：

sudo apt-get install build-essential

这将设置所有标准C ++库，而无需了解详细的细节。

Answer 2

我遇到了一个非常类似的问题。在我的情况下，问题是我有一些损坏的头文件，通过尝试查看它们来证明：

/usr/include/x86_64-linux-gnu/sys$ cat *  | grep "Input/outpu error"
cat: ioctl.h: Input/output error
cat: types.h: Input/output error

我的解决方案是清除这些文件，然后重新安装它们。

sudo apt-get purge libc6-dev
sudo apt-get install libc6-dev

Answer 3

解决方案：由于之前的一些尝试使其成功，我的路径是空的。我使用：

创建了一个干净的路径

export PATH= /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

编译后的问题是该程序不会显示任何结果。这是因为作为一个新的linux用户，我没有意识到我需要在前面用./调用一个程序。这也可以通过调用：

在路径中设置

export PATH: $PATH:./

无法在Ubuntu中编译简单的c ++程序

3 个答案: